<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>登录</title>
    <link rel="stylesheet" href="css/common.css">
    <link rel="stylesheet" href="css/login.css">
    <script src="js/jquery.min.js"></script>
</head>
<body> 
    <div class="nav">
        五子棋对战
    </div>
    <div class="login-container">
        <!-- 登录对话框 -->
        <div class="login-dialog">
            <h3>登录</h3>
            <div class="row">
                <span>用户名</span>
                <input type="text" id="username">
            </div>
            <div class="row">
                <span>密码</span>
                <input type="password" id="password">
            </div>
            <div class="row">
                <button id="submit">提交</button>
            </div>
        </div>
    </div>

    <script>
        let usernameInput = document.querySelector('#username');
        let passwordInput = document.querySelector('#password');
        let submitButton = document.querySelector('#submit');
        submitButton.onclick = function() {
            $.ajax({
                type: 'post',
                url: '/login',
                data: {
                    username: usernameInput.value,
                    password: passwordInput.value
                },
                success: function(body) {
                    //请求成功
                    //判定body是否是有效的登录对象
                    if (body && body.userid > 0) {
                        alert("登录成功！");
                        //跳转到游戏大厅页面
                        location.assign('/game_hall.html');
                    } else {
                        alert("登录失败！");
                    }
                },
                error: function() {
                    //请求失败
                    alert("登录失败！");
                }
            });
            passwordInput.value = '';
        }

    </script>
</body>
</html>